KR20160041859A - Dot punching device for improvement of surface roughness and pattern processing method using the same and the pattern - Google Patents

Abstract

The present invention provides a dot punching device for improving surface roughness, a pattern processing method using the same, and a valve plate for a compressor including the pattern. The dot punching device for improving surface roughness can form various patterns and minimize deformation of an object by forming a pattern comprising multiple dots on the surface of the object by punching a processing pin in a vertical direction while moving the processing pin in a horizontal direction. The dot punching device can minimize abrasion due to friction and can be easily maintained and replaced. According to the present invention, the dot punching device forms a fixed pattern (20) on the surface adjacent to a suction port (11) and a discharge port (11) of the valve plate (10) for a compressor. The dot punching device includes: a mounting jig (100) to which the valve plate (10) is fixed; a pressing pin (200) having a pressing unit (210) at the front end to press the valve plate (10); and a moving unit (300) installed in the upper part of the mounting jig (100) and having the pattern (20) on the valve plate by reciprocating the processing pin (200) in the vertical direction at a fixed speed while moving the processing pin (200) at the fixed speed.

Description

TECHNICAL FIELD [0001] The present invention relates to a dot punching apparatus for improving surface roughness, a pattern processing method using the same, and a valve plate for a compressor having the pattern,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dot punch machining apparatus for improving surface roughness, a pattern machining method using the same, and a valve plate for a compressor equipped with the pattern. More particularly, To a dot-punch machining apparatus for improving surface roughness which forms an appropriate pattern by punching, a pattern machining method using the same, and a valve plate for a compressor in which the pattern is machined.

In general, a piston type compressor such as an inclined plate type compressor is formed by partitioning a cylinder, a suction chamber, and a discharge chamber with a valve plate interposed therebetween. A suction groove is formed in the valve plate at a position facing the suction chamber, And discharge grooves are respectively formed in the through holes.

A suction valve is disposed on the cylinder-side surface of the valve plate, and a discharge valve is disposed on the suction chamber and the discharge chamber-side surface, respectively. The suction valve has a suction lead portion at a position corresponding to the suction groove, And has a discharge lead portion at the position.

In operation of the compressor, the suction lead portion of the suction valve and the discharge lead portion of the discharge valve open / close the suction groove and the discharge groove of the valve plate in accordance with the reciprocating motion of the piston. Since the lubricating oil component contained in the refrigerant adheres, The lid portions are strongly adhered to the surface of the valve plate.

Therefore, it is known that instantaneous pressure fluctuation occurs when the suction groove and the discharge groove are opened or closed, causing an abnormal sound of the evaporator connected to the compressor, or adding an impact sound of the lead portion, thereby promoting noise and vibration.

Accordingly, in order to reduce noise and vibration, a method has been proposed in which the surface of the valve plate is processed into a predetermined pattern (20) so as to obtain a quietness.

Noise and vibration due to opening and closing of the suction valve and the discharge valve can be suppressed by roughening the surface of the valve plate. In the conventional roughening, a shot blasting method of spraying short particles of alumina or the like with air pressure is widely used.

The shot blast method masks the valve plate surface to spray shot particles, and then rinses the valve plate surface.

However, even if the valve is cleaned, there is a risk that the cutting particles on the surface of the valve plate cut by the short particles or the short particles themselves remain on the valve plate surface as foreign matter. If such foreign matter is mixed in the compressor, It caused the malfunction.

In addition, there is a problem that the machined surface of the surface is sharper, sharp and worn easily, and the surface of the machined surface is lowered than the existing surface, thereby increasing the possibility that the function of the pocket in which the oil stays is lost.

To solve this problem, a pattern for roughening was formed on the surface by a pressing method.

In this press-forming method, a pattern for roughening is previously formed in a metal mold at an intaglio angle, and the valve plate is pressed using a press apparatus to form a pattern for roughening in a necessary portion.

However, such a pressing method has a disadvantage in that it is difficult to realize various shapes because there is a possibility that peripheral portions are flexibly deformed by reaction during pressurization and there are limitations on the types of patterns that can be formed in the mold.

Further, when a part of the pattern of the mold is damaged, the whole mold must be removed and replaced, so that maintenance and repair are difficult.

Korea Patent No. 10-0536790

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a method of forming a pattern having a plurality of dots on a surface of an object by punching the processing pin in a vertical direction while moving the processing pin in a horizontal direction, The present invention provides a dot punch machining apparatus for minimizing wear caused by friction and improving surface roughness which is easy to maintain and repair, a pattern machining method using the same, and a valve plate for a compressor equipped with the pattern. have.

In order to achieve the above object, the present invention provides a punching device for forming a predetermined pattern (20) on a surface of a discharge port (11) of a valve plate (10) for a compressor and a surface around a suction port A seating jig 100 to which the valve plate 10 is fixed; A machining fin (200) formed with a pressing portion (210) for pressing the valve plate (10) at its tip end; The valve plate 10 is provided at the upper portion of the seating jig 100 and reciprocates at a constant speed in a vertical direction while moving the processing fin 200 in a horizontal direction at a constant speed to form a pattern 20 on the valve plate 10 A unit 300; .

A height adjustment support 400 for adjusting the vertical height of the mobile unit 300; .

Wherein the pressing portion (210) is formed in a circular conical shape having a smaller diameter in the downward direction.

The side inclination angle a of the pressing portion 210 is any one of 60 °, 90 °, and 120 °.

The tip of the pressing portion 210 has a hexagonal shape.

In order to achieve the above object, a pattern processing method using a dot-punching processing apparatus according to the present invention is a pattern processing method using a dot-punching processing apparatus according to the present invention, in which a processing fin 200 having a pressing portion 210 formed at its tip is moved horizontally and vertically, Wherein the machining fin includes a discharge port and a suction port formed in the outer periphery of the discharge port and the suction port, And the vertical movement speed is the same as the distance from the discharge port 11 and the suction port 11 increases and the horizontal direction of the processing pin 200 The movement speed is increased.

In order to achieve the above object, in the pattern 20 of the present invention, in the discharge port 11 of the valve plate 10 for the compressor and the punching pattern 20 formed around the suction port 11 surface, A plurality of lines L spaced along the outer periphery of the discharge port 11 and the outer periphery of the suction port 11 are spaced apart from each other in a direction away from the discharge port 11 and the suction port 11, , And the distance between the lines (L) is larger as the distance from the discharge port (11) and the suction port (11) increases.

A first section 21 formed along the outer periphery of the discharge port 11 and the suction port 11 and having the line L not formed; A second section 22 having a plurality of lines L formed outside the first section 21; A plurality of lines L are formed outside the second section 22 and the interval between the lines L and the intervals of the dots 12 is greater than the distance between the lines L and dots of the second section 22, (12); .

The dot punching apparatus of the present invention as described above, the pattern processing method using the same, and the pattern thereof have the following effects.

It is possible to easily mount and separate the machining fin 200 from the moving unit 300 so that the machining fin 200 can be easily maintained and repaired and the moving speed, The effect of being able to form various dots 12 and patterns 20 by changing the shape of the pressing portion 210 of the processing pin 200 is generated.

The pressing portion 210 is formed in a hexagonal shape so that a maximum number of dots 12 are formed in the same area to minimize the amount of oil filled in the dots 12, The safety of the pattern 20 is improved, and the effect of minimizing the surface tension when rubbing against the lead is generated.

A plurality of dots 12 are formed on the machining fin 200 by using the moving unit 300 to form the pattern 20 so that only the surface portion of the valve plate 10 is processed so that the surface is not sharpened , The surface of the gentle bend is maintained, and therefore, an effect of preventing the worn easily when rubbing against the lead is generated.

1 is a perspective view of a dot punching processing apparatus according to an embodiment of the present invention,
2 is an enlarged front end view of a machining fin 200 of a dot punching machining apparatus according to an embodiment of the present invention,
3 is an enlarged front end view of a machining fin 200 of a dot punching machining apparatus according to another embodiment of the present invention,
4 is a plan view of a dot punching apparatus according to another embodiment of the present invention.
5 is a plan view of a pattern 20 formed using a dot punching apparatus according to an embodiment of the present invention,
6 is a plan view of a pattern 20 formed using a dot-punching processing apparatus according to another embodiment of the present invention.

Fig. 1 is a perspective view of a dot punching machining apparatus according to an embodiment of the present invention, Fig. 2 is an enlarged perspective view of a machining fin 200 of a dot punching machining apparatus according to an embodiment of the present invention, Fig. Fig. 4 is a plan view of a dot-punching apparatus according to another embodiment of the present invention, Fig. 5 is a plan view of a dot-punching apparatus according to an embodiment of the present invention, Fig. 6 is a plan view of a pattern 20 formed using a dot punching processing apparatus according to another embodiment of the present invention.

1 and 2, a dot punching apparatus according to an embodiment of the present invention includes a seating jig 100, a processing fin 200, a mobile unit 300, and a height adjusting support 400.

The seating jig 100 is for fixing the valve plate 10, which is an object of the punching process, and is formed in the form of a flat plate which is constantly horizontal with the mobile unit 300, which will be described later.

The valve plate 10 is used for a compressor or the like, and has a suction port 11 connected to the suction chamber of the cylinder and a discharge port 11 connected to the discharge chamber.

A fixing protrusion 110 inserted into the discharge port 11 and the suction port 11 is formed on the upper surface of the seating jig 100 when the valve plate 10 is seated.

The fixing protrusions 110 are formed at the same intervals as the positions of the discharge port 11 and the suction port 11 to guide the position where the valve plate 10 is fixed and to prevent the valve plate 10 from being arbitrarily moved in the horizontal direction after fixing .

In some cases, the seating jig 100 may be provided with a pressing means for preventing the valve plate 10 fixed on the upper surface from being lifted up. In addition, a tilt means for adjusting the tilt may be provided, It is also possible to process photographic products and to provide a vibration-absorbing means for absorbing vibration to reduce noise during processing.

The processing pin 200 is shaped like a long pin in the vertical direction and is pressed at the lower end while moving around the discharge port 11 and the suction port 11 of the valve plate 10 to form circular dots 12 The pressing portion 210 is formed.

As shown in FIG. 2, the pressing portion 210 is formed in a circular conical shape in which the diameter of the tip decreases gradually as it goes downward, and the tip is rounded rounded.

Further, as shown in FIG. 2, the side inclination angle a of the pressing portion 210 is 90 degrees.

Of course, the inclination angle a of the pressing portion 210 may be set to 60 degrees or 120 degrees depending on the case. When the inclination angle a is 60 degrees, the diameter of the dot 12 is small, The diameter of the dot 12 becomes large and the depth becomes shallow.

The pressing unit 210 moves downward by the moving unit 300 to form a dot 12 having a concave circular shape in the valve plate 10, To form a pattern 20, which will be described later, of a plurality of the dots 12.

Here, the pattern 20 is filled with oil, and the surface roughness of the valve plate 10 is increased to reduce the noise and vibration generated by the surface tension of the oil during the friction between the lid of the compressor cylinder and the valve plate 10 .

Meanwhile, as shown in FIG. 3, the pressing portion 210 may have a hexagonal shape.

Specifically, the pressing portion 210 has a hexagonal cross-sectional shape, and the pressing portion 210 is rounded in a downward direction.

When the valve plate 10 is pressed, the hexagonal-shaped recessed dots 12 are formed.

If the shape of the dot 12 is hexagonal, the surplus space between the dot 12 and the dot 12 in the pattern 20 to be described later formed on the valve plate 10 is minimized, It is possible to form as many dots 12 as possible in the area.

The pressing portion 210 is formed in a hexagonal shape so that a maximum number of dots 12 are formed in the same area to minimize the amount of oil filled in the dots 12, Maximizing usability, improving the safety of the pattern 20, and minimizing the surface tension when rubbing against the leads.

Of course, the pressing portion 210 may be modified in various shapes such as a triangle, a square, or a pentagon in addition to a circular or hexagonal shape.

The movable unit 300 is disposed on the upper portion of the seating jig 100 and reciprocates at a constant speed in the vertical direction while moving the processing pin 200 at a constant speed in the horizontal direction, The pattern 20 is formed.

That is, the mobile unit 300 reciprocally moves the processing pin 200 in the vertical direction about 10 times in a second, as in a general rudder, and moves the discharge port 11 and the suction port 11 in the horizontal direction, A plurality of circular concave dots 12 are formed at regular intervals around the discharge port 11 and the suction port 11 so as to form a pattern 20 .

Here, the mobile unit 300 is driven by a program for driving the X and Y-axis stage stepping motors to move the processing pins 200, and to process the patterns 20 by CNC alone.

In addition, the moving unit 300 can adjust the depth of the dot 12 by adjusting the air pressure when moving up and down.

Meanwhile, the height of the mobile unit 300 can be arbitrarily adjusted by the height adjustment support member 400.

The height adjustment support 400 is for adjusting the distance between the seating jig 100 and the mobile unit 300 and includes a guide unit 410 formed in a vertically elongated shape, And the moving unit 300 is mounted on the elevating unit 420 to move up and down together.

In the punching apparatus according to the embodiment of the present invention having the above configuration, the machining pin 200 can be easily mounted and removed from the moving unit 300, and when the mold is damaged in the conventional mold, It is possible to adjust the moving speed, the direction and the pressure without changing the machining fin 200, or to adjust the moving speed, the direction and the pressure of the machining fin 200, The effect of being able to form various dots 12 and patterns 20 by changing the shape of the pattern 210 is generated.

On the other hand, as occasion demands, the punching processing apparatus of the present invention can be configured as an index-type automated system.

4, the seating jig 100 is formed in a circular shape so as to rotate on the basis of a central point, and seven A plurality of the fixing protrusions 110 are formed so that the valve plates 10 can be fixedly arranged at regular intervals.

That is, seven sets of the fixing protrusions 110 are provided.

A total of five sets of the movable unit 300, the processing pin 200 and the height adjusting support 400 are provided and are arranged one by one in the fixing protrusions 110 .

The movable unit 300 formed of five sets forms the pattern 20 around any one of a plurality of suction ports 11 or discharge ports 11 formed in the valve plate 10.

That is, when the suction port 11 and the discharge port 11 are formed in the valve plate 10, any one of the moving units 300 is connected to the periphery of one of the suction ports 11 And the pattern 20 is formed on the suction port 11 and the discharge port 11 adjacent to the suction port 11 adjacent to the pattern unit 20.

The seating jig 100 is rotated at intervals of about 51 degrees so that one valve plate 10 passes through the suction unit 11 and the discharge port 11 The pattern 20 is formed in the vicinity of the fixing protrusion 110. In the remaining two sets of the fixing protrusions 110, the operator takes out the valve plate 10 and mounts the valve plate 10 again.

Of course, the drawing operation and the drawing operation of the valve plate 10 may be performed automatically by using a hydraulic system instead of a manual operation, or may be configured by an automated system in the form of a kender.

A plurality of fixing protrusions 110 are formed on the upper surface of the seating jig 100 so as to mount a plurality of valve plates 10 and the seating jig 100 is rotated, And forming the pattern 20 by the machining fin 200, the machining apparatus is automated, and the work is more efficiently performed, thereby improving the productivity.

The patterns 20 formed by the processing pins 200 may include a plurality of lines L spaced apart from each other by a predetermined distance along the outer circumference of the discharge port 11 and the suction port 11, And the lines L are spaced apart from each other in a direction away from the discharge port 11 or the suction port 11. The interval between the discharge ports 11 and the suction port 11, .

More specifically. As shown in FIG. 5, the pattern 20 includes a first section 21, a second section 22, and a third section 23.

The first section 21 is formed along the outer periphery of the discharge port 11 or the suction port 11 and is a section in which the line L is not formed.

That is, the first section 21 is formed in a ring shape in which the surface is not machined in a direction starting from the outer periphery of the discharge port 11 or the suction port 11 and gradually getting farther away.

The width of the first section 21 is about 0.5 mm.

The second section 22 is a section where a plurality of the lines L are formed outside the first section 21 and a plurality of dots 12 are formed along the outer circumference of the first section 21, So as to form a ring-shaped pattern 20.

The width of the second section 22 is about 1.0 mm.

The second section 22 rubs against the lid of the compressor cylinder, and oil is applied to generate noise and vibration. However, since the surface of the second section 22 is rugged due to the shape of the pattern 20, Minimize noise and vibration.

A plurality of lines L are formed outside the second section 22 in the third section 23 and a gap between the lines L and the dot 12 is formed in the second section 22 (L) and the dot (12).

The third section 23 is used as a section filled with oil without friction with the leads, and is formed to have a width of about 2.1 mm.

It is preferable that the interval between the lines L of the second section 22 is 0.1 to 0.2 mm and the interval between the lines L of the third section 23 is 0.2 to 0.5 mm.

Meanwhile, the pattern 20 may be formed only in the second section 22 and the third section 23 as the case may be.

6, the second section 22 starts from the outer periphery of the discharge port 11 or the suction port 11 and extends in the outer direction from about 0 to about 5 lines L, And the third section 23 is composed of about 15 lines (L).

Of course, the number of the lines L is freely adjustable from about 20 to about 50.

The surface tension of the second section 22 in which friction occurs directly is minimized and the noise and vibrations are reduced by increasing the distance between the line L and the discharge port 11 and the suction port 11. [ And an effect of increasing the oil content in the third section 23 is generated.

As shown in FIG. 7, the dots 12 constituting the line (L) are formed in a concave manner only in the processed portion. Since the unprocessed surface is flat, the dots 12 are not easily worn by friction with the leads So that a constant height can be maintained.

The punching processing method for forming the pattern 20 may include a step of operating the moving unit 300 so that the processing pin 200 moves horizontally along the outer circumference of the discharge port 11 and the suction port 11 And vertically reciprocating at a constant speed in the vertical direction while moving.

Here, the moving speed of the moving unit 300 in the vertical direction is the same as the distance from the discharge port 11 and the suction port 11, and the horizontal moving speed of the processing pin 200 is increased.

That is, the moving unit 300 reciprocates the machining fin 200 in the vertical direction about 10 times in one second, as in the general steering apparatus, and in the second section 22, In the third section 23 to about 30 to 80 mm.

As described above, in the punching method according to the embodiment of the present invention, various patterns 20 can be formed at the speed without changing the equipment such as the processing pins 200, so that productivity and efficiency are improved.

The punching device according to the embodiment of the present invention having the above configuration, the processing method using the same, and the pattern thereof are formed by forming a plurality of dots 12 with the processing pins 200 using the mobile unit 300, 20 so that only the surface portion of the valve plate 10 is machined so that the surface is not sharpened and the gently curved surface is retained so that it is possible to prevent the valve plate 10 from being easily worn when rubbing against the lead.

Particularly, since the pressing portion 210 is formed in a hexagonal shape, a maximum number of the dots 12 can be formed in a predetermined area, thereby maximizing the function of the oil pocket, minimizing the surface tension, A further lowering effect is generated.

In addition, various patterns 20 can be formed by manipulating the program of the mobile unit 300, and the machining fin 200 can be easily replaced to facilitate maintenance and repair. It is possible to form various dots 12, thereby improving the usability.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims something to do.

100: a seating jig, 110: a fixing projection
200: machining pin, 210: pressing portion,
300: mobile unit, 400: height adjustment support,
10: valve plate, 11: discharge port, suction port,
12: dot,
20: pattern, 21: first section,
22: second section, 23: third section,

Claims (6)

A punching device for forming a pattern (20) comprising a discharge port (11) of a valve plate (10) for a compressor and a concave dot (12) on a surface around a suction port (11)
A seating jig 100 to which the valve plate 10 is fixed;
A machining fin (200) formed with a pressing portion (210) for pressing the valve plate (10) at its tip end;
The valve plate 10 is provided at the upper portion of the seating jig 100 and reciprocates at a constant speed in a vertical direction while moving the processing fin 200 in a horizontal direction at a constant speed to form a pattern 20 on the valve plate 10 A unit 300;
And a height adjustment support (400) for adjusting the vertical height of the mobile unit (300)
The seating jig 100 is rotatably provided and the seating jig 100 is provided with a fixing protrusion inserted into the discharge port 1 or the suction port 11 of the valve plate 10, Are arranged at predetermined intervals along the rotation direction of the seating jig (100).
The method according to claim 1,
Wherein the pressing portion (210) is formed in a circular conical shape having a smaller diameter in a downward direction.
The method according to claim 1,
Wherein the side inclination angle (a) of the pressing portion (210) is any one of 60 °, 90 °, or 120 °.
The method according to claim 1,
Wherein the pressing portion (210) has a hexagonal or polygonal cross-sectional front end shape.
The processing pin 200 having the pressing portion 210 at its tip is moved horizontally and vertically so that the concave dot 12 is formed on the surface of the discharge port 11 of the valve plate 10 for the compressor and the periphery of the suction port 11. [ (20), the method comprising the steps of:
Forming the second section 22 by reciprocating the processing pin 200 vertically 10 times while moving the processing pin 200 in the horizontal direction by 10 to 30 mm along the outer periphery of the discharge port 11 and the suction port 11;
Forming the third section 23 by reciprocating the processing pin 200 vertically 10 times while moving the processing pin 200 in the horizontal direction by 30 to 80 mm along the outer periphery of the discharge port 11 and the suction port 11; Wherein the valve plate has a plurality of through holes formed therein.
A valve plate (10) for a compressor having a discharge port (11) and a pattern (20) consisting of concave dots (12) punched for improved surface roughness around the surface of the suction port (11)
The pattern (20)
The dot 12 is formed by lines L arranged at regular intervals along the outer circumference of the discharge port 11 and the suction port 11,
A first section 21 formed along the outer periphery of the discharge port 11 and the suction port 11 and having the line L not formed;
A second section 22 having a plurality of lines L formed outside the first section 21;
A plurality of lines L are formed outside the second section 22 and the interval between the lines L and the intervals of the dots 12 is greater than the distance between the lines L and dots of the second section 22, A third section 23 that is larger than the interval of the second section 12; / RTI >
Characterized in that the interval between the lines L of the second section 22 is between 0.1 and 0.2 mm and the interval between the lines L of the third section 23 is between 0.2 and 0.5 mm. plate.

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